#include <GraphicsView_ViewPort.h>
#include <QCursor>
+#include <QApplication>
//=======================================================================
// name : HYDROGUI_PrsImage
myCaptionItem( 0 ),
myPrsImageFrame( 0 ),
myIsTransformationPointPreview( false ),
+ myIsByTwoPoints( true ),
myTransformationPointType( None )
{
myTransformationPointCursor = new QCursor( Qt::CrossCursor );
// Function : setImage
// Purpose :
//================================================================
-void HYDROGUI_PrsImage::setImage( const QImage& theImage )
+void HYDROGUI_PrsImage::setImage( const QImage& theImage, const bool theCompute )
{
myImage = theImage;
+ if ( theCompute ) {
+ compute();
+ computeTransformationPoints( true );
+ }
}
//================================================================
// Function : computeTransformationPoints
// Purpose :
//================================================================
-void HYDROGUI_PrsImage::computeTransformationPoints()
+void HYDROGUI_PrsImage::computeTransformationPoints( const bool theObligatoryInit )
{
- if( myTransformationPointMap.isEmpty() )
{
- int aWidth = myImage.width();
- int aHeight = myImage.height();
-
for( int aPointType = PointA; aPointType <= PointC; aPointType++ )
{
- TransformationPoint aTransformationPoint;
-
- QPoint aPoint;
- QString aCaption;
- QColor aColor = Qt::black;
- switch( aPointType )
- {
- case PointA:
- aPoint = QPoint( 0, 0 );
- aCaption = "A";
- aColor = Qt::darkRed;
- break;
- case PointB:
- aPoint = QPoint( aWidth, 0 );
- aCaption = "B";
- aColor = Qt::darkGreen;
- break;
- case PointC:
- aPoint = QPoint( 0, aHeight );
- aCaption = "C";
- aColor = Qt::darkBlue;
- break;
- }
-
- aTransformationPoint.Point = aPoint;
- aTransformationPoint.Caption = aCaption;
-
- aTransformationPoint.PointItem = new QGraphicsEllipseItem( this );
- aTransformationPoint.PointItem->setVisible( false );
- aTransformationPoint.PointItem->setPen( QPen( aColor ) );
- aTransformationPoint.PointItem->setBrush( QBrush( aColor ) );
-
- aTransformationPoint.CaptionItem = new QGraphicsSimpleTextItem( aCaption, this );
- aTransformationPoint.CaptionItem->setVisible( false );
- aTransformationPoint.CaptionItem->setPen( QPen( aColor ) );
- aTransformationPoint.CaptionItem->setBrush( QBrush( aColor ) );
-
- myTransformationPointMap[ aPointType ] = aTransformationPoint;
+ if( myTransformationPointMap.isEmpty() || theObligatoryInit )
+ initTrsfPoints( aPointType );
+ // Show/hide the point if necessary
+ updateTrsfPoint( aPointType );
+
}
}
+}
+
+QGraphicsItemGroup* HYDROGUI_PrsImage::createPointItem( const QString& theCaption,
+ const QColor& theColor )
+{
+ QGraphicsEllipseItem* aPointItem = new QGraphicsEllipseItem( this );
+ aPointItem->setPen( QPen( theColor ) );
+ aPointItem->setBrush( QBrush( theColor ) );
+
+ double aRadius = 3;
+ QRectF aRect( -QPointF( aRadius, aRadius ), QSizeF( aRadius * 2 + 1, aRadius * 2 + 1 ) );
+ aPointItem->setRect( aRect );
+ aPointItem->setPos( QPointF( 0, 0 ) );
+
+ QGraphicsSimpleTextItem* aCaptionItem = aCaptionItem = new QGraphicsSimpleTextItem( theCaption, this );
+ aCaptionItem->setPen( QPen( theColor ) );
+ aCaptionItem->setBrush( QBrush( theColor ) );
+ QFont aFont = aCaptionItem->font();
+ aFont.setPointSize( qApp->font().pointSize() );
+ aCaptionItem->setFont( aFont );
+ aCaptionItem->setPos( QPointF( -aRadius * 2, aRadius * 2 ) );
+
+ QGraphicsItemGroup* aGroupItem = new QGraphicsItemGroup( this );
+ aGroupItem->addToGroup( aPointItem );
+ aGroupItem->addToGroup( aCaptionItem );
+ aGroupItem->setVisible( false );
+ aGroupItem->setFlag( QGraphicsItem::ItemIgnoresTransformations );
+
+ return aGroupItem;
+}
+
+//================================================================
+// Function : initTrsfPoints
+// Purpose :
+//================================================================
+void HYDROGUI_PrsImage::initTrsfPoints( const int thePointType )
+{
+ QPoint aPoint;
+ QString aCaption;
+ QColor aColor = Qt::black;
- bool anIsVisible = myIsTransformationPointPreview;
- bool anIsPointVisible;
- for( int aPointType = PointA; aPointType <= PointC; aPointType++ )
+ int aWidth = myImage.width();
+ int aHeight = myImage.height();
+ switch( thePointType )
{
- // If image is transformed only by two points then the point C is invisible
- anIsPointVisible = anIsVisible && (
- ( !myIsByTwoPoints ) || ( myIsByTwoPoints && ( aPointType != PointC ) ) );
- TransformationPoint& aTransformationPoint = myTransformationPointMap[ aPointType ];
-
- double aRadius = 5;
- const QPointF& aPoint = aTransformationPoint.Point;
- QRectF aRect( aPoint - QPointF( aRadius, aRadius ), QSizeF( aRadius * 2 + 1, aRadius * 2 + 1 ) );
- aTransformationPoint.PointItem->setRect( aRect );
- aTransformationPoint.PointItem->setVisible( anIsPointVisible );
-
- QPointF aCaptionShift( -aRadius * 2, aRadius * 2 );
- aTransformationPoint.CaptionItem->setPos( aPoint + aCaptionShift );
- aTransformationPoint.CaptionItem->setVisible( anIsPointVisible );
+ case PointA:
+ aPoint = QPoint( 0, 0 );
+ aCaption = "A";
+ aColor = Qt::darkRed;
+ break;
+ case PointB:
+ aPoint = QPoint( aWidth, 0 );
+ aCaption = "B";
+ aColor = Qt::darkGreen;
+ break;
+ case PointC:
+ aPoint = QPoint( 0, aHeight );
+ aCaption = "C";
+ aColor = Qt::darkBlue;
+ break;
}
+
+ TransformationPoint aTransformationPoint;
+ if ( myTransformationPointMap.contains( thePointType ) )
+ aTransformationPoint = myTransformationPointMap[thePointType];
+
+ aTransformationPoint.Point = aPoint;
+ aTransformationPoint.Caption = aCaption;
+ if ( !aTransformationPoint.GroupItem )
+ aTransformationPoint.GroupItem = createPointItem( aCaption, aColor );
+ aTransformationPoint.GroupItem->setPos( aPoint );
+
+ myTransformationPointMap[ thePointType ] = aTransformationPoint;
+}
+
+//================================================================
+// Function : updateTrsfPoint
+// Purpose :
+//================================================================
+void HYDROGUI_PrsImage::updateTrsfPoint( const int thePointType )
+{
+ // If image is transformed only by two points then the point C is invisible
+ bool anIsPointVisible = myIsTransformationPointPreview && (
+ ( !myIsByTwoPoints ) || ( myIsByTwoPoints && ( thePointType != PointC ) ) );
+
+ TransformationPoint& aTransformationPoint = myTransformationPointMap[ thePointType ];
+
+ const QPointF& aPoint = aTransformationPoint.Point;
+ aTransformationPoint.GroupItem->setPos( aPoint );
+ aTransformationPoint.GroupItem->setVisible( anIsPointVisible );
}
//================================================================
-// Function : IsByTwoPoints
+// Function : getIsByTwoPoints
// Purpose :
//================================================================
bool HYDROGUI_PrsImage::getIsByTwoPoints() const
}
//================================================================
-// Function : SetIsByTwoPoints
+// Function : setIsByTwoPoints
// Purpose :
//================================================================
void HYDROGUI_PrsImage::setIsByTwoPoints( const bool theIsByTwoPoints )
myIsByTwoPoints = theIsByTwoPoints;
if ( myTransformationPointMap.contains( PointC ) )
{
- TransformationPoint& aTransformationPoint = myTransformationPointMap[ PointC ];
- aTransformationPoint.PointItem->setVisible( myIsTransformationPointPreview && theIsByTwoPoints );
- aTransformationPoint.CaptionItem->setVisible( myIsTransformationPointPreview && theIsByTwoPoints );
+ // Show/hide the point C if necessary
+ updateTrsfPoint( PointC );
}
}
